587 lines
18 KiB
C++
587 lines
18 KiB
C++
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// Test library configuration for windows.cfg
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//
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// Usage:
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// $ cppcheck --check-library --library=windows --enable=information --error-exitcode=1 --inline-suppr --suppress=missingIncludeSystem test/cfg/windows.cpp
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// =>
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// No warnings about bad library configuration, unmatched suppressions, etc. exitcode=0
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//
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#include <windows.h>
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void validCode()
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{
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// Valid Semaphore usage, no leaks, valid arguments
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HANDLE hSemaphore1;
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hSemaphore1 = CreateSemaphore(NULL, 0, 1, NULL);
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CloseHandle(hSemaphore1);
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HANDLE hSemaphore2;
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hSemaphore2 = CreateSemaphoreEx(NULL, 0, 1, NULL, 0, SEMAPHORE_ALL_ACCESS);
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CloseHandle(hSemaphore2);
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HANDLE hSemaphore3;
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hSemaphore3 = OpenSemaphore(SEMAPHORE_ALL_ACCESS, TRUE, "sem");
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CloseHandle(hSemaphore3);
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// Valid lstrcat usage, but with warning because it is deprecated
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char buf[30] = "hello world";
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// cppcheck-suppress lstrcatCalled
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lstrcat(buf, "test");
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// cppcheck-suppress strlwrCalled
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strlwr(buf);
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// cppcheck-suppress struprCalled
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strupr(buf);
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// Valid Mutex usage, no leaks, valid arguments
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HANDLE hMutex1;
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hMutex1 = CreateMutex(NULL, TRUE, NULL);
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if (hMutex1) {
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ReleaseMutex(hMutex);
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}
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CloseHandle(hMutex1);
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HANDLE hMutex2;
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hMutex2 = CreateMutexEx(NULL, NULL, 0, MUTEX_ALL_ACCESS);
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CloseHandle(hMutex2);
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HANDLE hMutex3;
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hMutex3 = OpenMutex(MUTEX_ALL_ACCESS, FALSE, "sem");
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CloseHandle(hMutex3);
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// Valid Module usage, no leaks, valid arguments
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HMODULE hModule = GetModuleHandle(L"My.dll");
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FreeLibrary(hModule);
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hModule = GetModuleHandle(TEXT("somedll"));
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FreeLibrary(hModule);
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hModule = GetModuleHandle(NULL);
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FreeLibrary(hModule);
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// Valid Event usage, no leaks, valid arguments
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HANDLE event;
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event = CreateEvent(NULL, FALSE, FALSE, NULL);
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if (NULL != event) {
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SetEvent(event);
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CloseHandle(event);
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}
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event = OpenEvent(EVENT_ALL_ACCESS, FALSE, L"testevent");
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if (NULL != event) {
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PulseEvent(event);
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SetEvent(event);
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CloseHandle(event);
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}
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event = CreateEventEx(NULL, L"testevent3", CREATE_EVENT_INITIAL_SET, EVENT_MODIFY_STATE);
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if (NULL != event) {
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ResetEvent(event);
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CloseHandle(event);
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}
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void *pMem1 = _malloca(1);
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_freea(pMem1);
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// Memory from _alloca must not be freed
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void *pMem2 = _alloca(10);
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memset(pMem2, 0, 10);
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SYSTEMTIME st;
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GetSystemTime(&st);
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DWORD lastError = GetLastError();
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SetLastError(lastError);
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PSID pEveryoneSID = NULL;
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SID_IDENTIFIER_AUTHORITY SIDAuthWorld = SECURITY_WORLD_SID_AUTHORITY;
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AllocateAndInitializeSid(&SIDAuthWorld, 1, SECURITY_WORLD_RID, 0, 0, 0, 0, 0, 0, 0, &pEveryoneSID)
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FreeSid(pEveryoneSID);
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LPVOID pMem = HeapAlloc(GetProcessHeap(), 0, 10);
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pMem = HeapReAlloc(GetProcessHeap(), 0, pMem, 0);
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HeapFree(GetProcessHeap(), 0, pMem);
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char bufC[50];
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sprintf_s(bufC, "Hello");
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printf("%s", bufC);
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sprintf_s(bufC, "%s", "test");
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printf("%s", bufC);
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sprintf_s(bufC, _countof(bufC), "%s", "test");
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printf("%s", bufC);
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wchar_t bufWC[50];
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swprintf_s(bufWC, L"Hello");
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wprintf(L"%s\n", bufWC);
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swprintf_s(bufWC, L"%s %d", L"swprintf_s", 3);
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wprintf(L"%s\n", bufWC);
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swprintf_s(bufWC, _countof(bufWC), L"%s %d", L"swprintf_s", 6);
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wprintf(L"%s\n", bufWC);
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TCHAR bufTC[50];
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_stprintf(bufTC, TEXT("Hello"));
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_tprintf(TEXT("%s"), bufTC);
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_stprintf(bufTC, TEXT("%d"), 1);
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_tprintf(TEXT("%s"), bufTC);
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_stprintf(bufTC, _countof(bufTC), TEXT("%d"), 2);
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_tprintf(TEXT("%s"), bufTC);
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DWORD dwordInit = 0;
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GetUserName(NULL, &dwordInit);
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dwordInit = 10;
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GetUserName(bufTC, _countof(bufTC));
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WSADATA wsaData = {0};
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WSAStartup(2, &wsaData);
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SOCKET sock = socket(1, 2, 3);
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u_long ulongInit = 0;
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ioctlsocket(sock, FIONBIO, &ulongInit);
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if (sock != INVALID_SOCKET) {
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closesocket(sock);
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}
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WSACleanup();
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// Valid Library usage, no leaks, valid arguments
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HINSTANCE hInstLib = LoadLibrary(L"My.dll");
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FreeLibrary(hInstLib);
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hInstLib = LoadLibraryA("My.dll");
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FreeLibrary(hInstLib);
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hInstLib = LoadLibraryEx(L"My.dll", NULL, 0);
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FreeLibrary(hInstLib);
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hInstLib = LoadLibraryExW(L"My.dll", NULL, 0);
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FreeLibrary(hInstLib);
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hInstLib = ::LoadLibrary(L"My.dll");
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FreeLibraryAndExitThread(hInstLib, 0); // Does not return! Must be at the end!
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}
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void bufferAccessOutOfBounds()
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{
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wchar_t buf[10];
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// Verifying _countof macro configuration
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// Valid loop over array
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for (size_t i = 0; i < _countof(buf); ++i) {
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buf[i] = L'\0';
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}
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// Wrong loop over array accessing one element past the end
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for (size_t i = 0; i <= _countof(buf); ++i) {
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// cppcheck-suppress arrayIndexOutOfBounds
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buf[i] = L'\0';
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}
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}
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void nullPointer()
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{
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HANDLE hSemaphore;
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// cppcheck-suppress nullPointer
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hSemaphore = OpenSemaphore(SEMAPHORE_ALL_ACCESS, FALSE, NULL);
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CloseHandle(hSemaphore);
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// cppcheck-suppress lstrcatCalled
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// cppcheck-suppress nullPointer
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lstrcat(NULL, "test");
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char buf[10] = "\0";
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// cppcheck-suppress lstrcatCalled
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// cppcheck-suppress nullPointer
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lstrcat(buf, NULL);
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HANDLE hMutex;
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// cppcheck-suppress nullPointer
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hMutex = OpenMutex(MUTEX_ALL_ACCESS, FALSE, NULL);
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CloseHandle(hMutex);
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//Incorrect: 1. parameter, must not be null
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// cppcheck-suppress nullPointer
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FARPROC pAddr = GetProcAddress(NULL, "name");
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HMODULE * phModule = NULL;
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// cppcheck-suppress nullPointer
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GetModuleHandleEx(0, NULL, phModule);
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// cppcheck-suppress leakReturnValNotUsed
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// cppcheck-suppress nullPointer
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OpenEvent(EVENT_ALL_ACCESS, FALSE, NULL);
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HANDLE hEvent = NULL;
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// cppcheck-suppress nullPointer
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PulseEvent(hEvent);
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// cppcheck-suppress nullPointer
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ResetEvent(hEvent);
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// cppcheck-suppress nullPointer
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SetEvent(hEvent);
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char *str = NULL;
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// cppcheck-suppress strlwrCalled
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// cppcheck-suppress nullPointer
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strlwr(str);
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// cppcheck-suppress struprCalled
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// cppcheck-suppress nullPointer
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strupr(str);
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// cppcheck-suppress nullPointer
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GetSystemTime(NULL);
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// cppcheck-suppress nullPointer
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GetLocalTime(NULL);
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// TODO: error message: arg1 must not be nullptr if variable pointed to by arg2 is not 0
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DWORD dwordInit = 10;
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GetUserName(NULL, &dwordInit);
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TCHAR bufTC[10];
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// cppcheck-suppress nullPointer
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GetUserName(bufTC, NULL);
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SOCKET socketInit = {0};
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sockaddr sockaddrUninit;
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int intInit = 0;
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int *pIntNull = NULL;
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char charArray[] = "test";
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// cppcheck-suppress nullPointer
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WSAStartup(1, NULL);
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// cppcheck-suppress nullPointer
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bind(socketInit, NULL, 5);
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// cppcheck-suppress nullPointer
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getpeername(socketInit, NULL, &intInit);
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// cppcheck-suppress nullPointer
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getpeername(socketInit, &sockaddrUninit, pIntNull);
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// cppcheck-suppress nullPointer
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getsockopt(sockInit, 1, 2, NULL, &intInit);
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// cppcheck-suppress nullPointer
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getsockopt(sockInit, 1, 2, charArray, pIntNull);
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}
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void memleak_malloca()
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{
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// cppcheck-suppress unreadVariable
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void *pMem = _malloca(10);
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// cppcheck-suppress memleak
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}
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void memleak_AllocateAndInitializeSid()
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{
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PSID pEveryoneSID = NULL;
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SID_IDENTIFIER_AUTHORITY SIDAuthWorld = SECURITY_WORLD_SID_AUTHORITY;
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AllocateAndInitializeSid(&SIDAuthWorld, 1, SECURITY_WORLD_RID, 0, 0, 0, 0, 0, 0, 0, &pEveryoneSID)
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// TODO: enable when #6994 is implemented cppcheck-suppress memleak
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}
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void memleak_HeapAlloc()
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{
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LPVOID pMem;
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pMem = HeapAlloc(GetProcessHeap(), 0, 10);
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HeapValidate(GetProcessHeap(), 0, pMem);
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// cppcheck-suppress unreadVariable
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SIZE_T memSize = HeapSize(GetProcessHeap(), 0, pMem);
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// cppcheck-suppress memleak
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}
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void resourceLeak_CreateSemaphoreA()
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{
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HANDLE hSemaphore;
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// cppcheck-suppress unreadVariable
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hSemaphore = CreateSemaphoreA(NULL, 0, 1, "sem1");
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// cppcheck-suppress resourceLeak
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}
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void resourceLeak_CreateSemaphoreEx()
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{
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HANDLE hSemaphore;
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// cppcheck-suppress unreadVariable
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hSemaphore = CreateSemaphoreEx(NULL, 0, 1, NULL, 0, SEMAPHORE_ALL_ACCESS);
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// cppcheck-suppress resourceLeak
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}
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void resourceLeak_OpenSemaphore()
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{
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HANDLE hSemaphore;
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// cppcheck-suppress unreadVariable
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hSemaphore = OpenSemaphore(SEMAPHORE_ALL_ACCESS, TRUE, "sem");
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// cppcheck-suppress resourceLeak
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}
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void resourceLeak_CreateMutexA()
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{
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HANDLE hMutex;
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// cppcheck-suppress unreadVariable
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hMutex = CreateMutexA(NULL, TRUE, "sem1");
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// cppcheck-suppress resourceLeak
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}
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void resourceLeak_CreateMutexEx()
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{
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HANDLE hMutex;
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// cppcheck-suppress unreadVariable
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hMutex = CreateMutexEx(NULL, "sem", 0, MUTEX_ALL_ACCESS);
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// cppcheck-suppress resourceLeak
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}
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void resourceLeak_OpenMutex()
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{
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HANDLE hMutex;
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// cppcheck-suppress unreadVariable
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hMutex = OpenMutex(MUTEX_ALL_ACCESS, TRUE, "sem");
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// cppcheck-suppress resourceLeak
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}
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void resourceLeak_LoadLibrary()
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{
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HINSTANCE hInstLib;
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hInstLib = ::LoadLibrary(L"My.dll");
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typedef BOOL (WINAPI *fpFunc)();
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// cppcheck-suppress unreadVariable
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fpFunc pFunc = GetProcAddress(hInstLib, "name");
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// cppcheck-suppress resourceLeak
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}
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void resourceLeak_CreateEvent()
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{
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HANDLE hEvent;
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hEvent = CreateEvent(NULL, FALSE, FALSE, NULL);
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SetEvent(hEvent);
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// cppcheck-suppress resourceLeak
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}
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void resourceLeak_CreateEventExA()
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{
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HANDLE hEvent;
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// cppcheck-suppress unreadVariable
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hEvent = CreateEventExA(NULL, "test", CREATE_EVENT_INITIAL_SET, EVENT_MODIFY_STATE);
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// cppcheck-suppress resourceLeak
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}
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void resourceLeak_OpenEventW()
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{
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HANDLE hEvent;
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// cppcheck-suppress unreadVariable
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hEvent = OpenEventW(EVENT_ALL_ACCESS, TRUE, L"testevent");
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// cppcheck-suppress resourceLeak
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}
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void resourceLeak_socket()
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{
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SOCKET sock;
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// cppcheck-suppress unreadVariable
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sock = socket(1, 2, 3);
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// cppcheck-suppress resourceLeak
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}
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void ignoredReturnValue()
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{
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// cppcheck-suppress leakReturnValNotUsed
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CreateSemaphoreW(NULL, 0, 1, NULL);
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// cppcheck-suppress leakReturnValNotUsed
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CreateSemaphoreExA(NULL, 0, 1, NULL, 0, SEMAPHORE_ALL_ACCESS);
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// cppcheck-suppress leakReturnValNotUsed
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OpenSemaphoreA(SEMAPHORE_ALL_ACCESS, TRUE, "sem");
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// cppcheck-suppress leakReturnValNotUsed
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CreateMutexW(NULL, FALSE, NULL);
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// cppcheck-suppress leakReturnValNotUsed
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CreateMutexExA(NULL, NULL, 1, MUTEX_ALL_ACCESS);
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// cppcheck-suppress leakReturnValNotUsed
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OpenMutexA(MUTEX_ALL_ACCESS, TRUE, "sem");
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// cppcheck-suppress leakReturnValNotUsed
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LoadLibrary(L"My.dll");
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// cppcheck-suppress leakReturnValNotUsed
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LoadLibraryEx(L"My.dll", NULL, 0);
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HINSTANCE hInstLib = LoadLibrary(L"My.dll");
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// cppcheck-suppress ignoredReturnValue
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GetProcAddress(hInstLib, "name");
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FreeLibrary(hInstLib);
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// cppcheck-suppress leakReturnValNotUsed
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CreateEvent(NULL, FALSE, FALSE, NULL);
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// cppcheck-suppress leakReturnValNotUsed
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OpenEvent(EVENT_ALL_ACCESS, FALSE, L"testevent");
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// cppcheck-suppress leakReturnValNotUsed
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CreateEventEx(NULL, L"test", CREATE_EVENT_INITIAL_SET, EVENT_MODIFY_STATE);
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// cppcheck-suppress leakReturnValNotUsed
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_malloca(10);
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// cppcheck-suppress ignoredReturnValue
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_alloca(5);
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// cppcheck-suppress ignoredReturnValue
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GetLastError();
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// cppcheck-suppress ignoredReturnValue
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GetProcessHeap()
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// cppcheck-suppress leakReturnValNotUsed
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HeapAlloc(GetProcessHeap(), 0, 10);
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// cppcheck-suppress leakReturnValNotUsed
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HeapReAlloc(GetProcessHeap(), 0, 1, 0);
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// cppcheck-suppress leakReturnValNotUsed
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socket(1, 2, 3);
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// cppcheck-suppress ignoredReturnValue
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_fileno(stdio);
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}
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void invalidFunctionArg()
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{
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HANDLE hSemaphore;
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// cppcheck-suppress invalidFunctionArg
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hSemaphore = CreateSemaphore(NULL, 0, 0, NULL);
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CloseHandle(hSemaphore);
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// cppcheck-suppress invalidFunctionArgBool
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hSemaphore = CreateSemaphore(NULL, 0, 1, true);
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CloseHandle(hSemaphore);
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// cppcheck-suppress invalidFunctionArg
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hSemaphore = CreateSemaphoreEx(NULL, 0, 0, NULL, 0, SEMAPHORE_ALL_ACCESS);
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CloseHandle(hSemaphore);
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// cppcheck-suppress invalidFunctionArg
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hSemaphore = CreateSemaphoreEx(NULL, 0, 1, NULL, 1, SEMAPHORE_ALL_ACCESS);
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CloseHandle(hSemaphore);
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HANDLE hMutex;
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// cppcheck-suppress invalidFunctionArgBool
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hMutex = CreateMutex(NULL, TRUE, false);
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CloseHandle(hMutex);
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// cppcheck-suppress invalidFunctionArgBool
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hMutex = CreateMutex(NULL, FALSE, true);
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CloseHandle(hMutex);
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// cppcheck-suppress invalidFunctionArg
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hMutex = CreateMutexEx(NULL, NULL, 3, MUTEX_ALL_ACCESS);
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CloseHandle(hMutex);
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//Incorrect: 2. parameter to LoadLibraryEx() must be NULL
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// cppcheck-suppress invalidFunctionArg
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HINSTANCE hInstLib = LoadLibraryEx(L"My.dll", 1, 0);
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FreeLibrary(hInstLib);
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// cppcheck-suppress invalidFunctionArg
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void *pMem = _malloca(-1);
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_freea(pMem);
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// cppcheck-suppress unreadVariable
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// cppcheck-suppress invalidFunctionArg
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pMem = _alloca(-5);
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}
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void uninitvar()
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{
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HANDLE hSemaphore;
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// cppcheck-suppress uninitvar
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CloseHandle(hSemaphore);
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char buf[10];
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// cppcheck-suppress lstrcatCalled
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// cppcheck-suppress uninitvar
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lstrcat(buf, "test");
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buf[0] = '\0';
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char buf2[2];
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// cppcheck-suppress lstrcatCalled
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// cppcheck-suppress uninitvar
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lstrcat(buf, buf2);
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HANDLE hMutex;
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// cppcheck-suppress uninitvar
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ReleaseMutex(hMutex);
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// cppcheck-suppress uninitvar
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CloseHandle(hMutex);
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HANDLE hEvent;
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// cppcheck-suppress uninitvar
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PulseEvent(hEvent);
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// cppcheck-suppress uninitvar
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ResetEvent(hEvent);
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// cppcheck-suppress uninitvar
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SetEvent(hEvent);
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// cppcheck-suppress uninitvar
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CloseHandle(hEvent);
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char buf_uninit[10];
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// cppcheck-suppress strlwrCalled
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// cppcheck-suppress uninitvar
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strlwr(buf_uninit);
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// cppcheck-suppress struprCalled
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// cppcheck-suppress uninitvar
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strupr(buf_uninit);
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DWORD dwordUninit;
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// cppcheck-suppress uninitvar
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SetLastError(dwordUninit);
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DWORD dwordUninit;
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// cppcheck-suppress uninitvar
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GetUserName(NULL, &dwordUninit);
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FILE *pFileUninit;
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// cppcheck-suppress uninitvar
|
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// cppcheck-suppress ignoredReturnValue
|
|
_fileno(pFileUninit);
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|
}
|
|
|
|
void errorPrintf()
|
|
{
|
|
char bufC[50];
|
|
// cppcheck-suppress wrongPrintfScanfArgNum
|
|
sprintf_s(bufC, _countof(bufC), "%s %d", "sprintf_s");
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|
printf("%s\n", bufC);
|
|
// cppcheck-suppress wrongPrintfScanfArgNum
|
|
sprintf_s(bufC, "%s %d", "sprintf_s");
|
|
printf("%s\n", bufC);
|
|
// cppcheck-suppress wrongPrintfScanfArgNum
|
|
sprintf_s(bufC, _countof(bufC), "test", 0);
|
|
printf("%s\n", bufC);
|
|
// cppcheck-suppress wrongPrintfScanfArgNum
|
|
sprintf_s(bufC, "test", "sprintf_s");
|
|
printf("%s\n", bufC);
|
|
// cppcheck-suppress invalidPrintfArgType_s
|
|
sprintf_s(bufC, _countof(bufC), "%s", 1);
|
|
printf("%s\n", bufC);
|
|
// cppcheck-suppress invalidPrintfArgType_s
|
|
sprintf_s(bufC, "%s", 1);
|
|
printf("%s\n", bufC);
|
|
|
|
wchar_t bufWC[50];
|
|
// cppcheck-suppress wrongPrintfScanfArgNum
|
|
swprintf_s(bufWC, _countof(bufWC), L"%s %d", L"swprintf_s");
|
|
wprintf(L"%s\n", bufWC);
|
|
// cppcheck-suppress wrongPrintfScanfArgNum
|
|
swprintf_s(bufWC, L"%s %d", L"swprintf_s");
|
|
wprintf(L"%s\n", bufWC);
|
|
// cppcheck-suppress wrongPrintfScanfArgNum
|
|
swprintf_s(bufWC, _countof(bufWC), L"test", 0);
|
|
wprintf(L"%s\n", bufWC);
|
|
// cppcheck-suppress wrongPrintfScanfArgNum
|
|
swprintf_s(bufWC, L"test", L"swprintf_s");
|
|
wprintf(L"%s\n", bufWC);
|
|
// cppcheck-suppress invalidPrintfArgType_s
|
|
swprintf_s(bufWC, _countof(bufWC), L"%s", 1);
|
|
wprintf(L"%s\n", bufWC);
|
|
// cppcheck-suppress invalidPrintfArgType_s
|
|
swprintf_s(bufWC, L"%s", 1);
|
|
wprintf(L"%s\n", bufWC);
|
|
|
|
TCHAR bufTC[50];
|
|
// cppcheck-suppress wrongPrintfScanfArgNum
|
|
_stprintf_s(bufTC, _countof(bufTC), TEXT("%s %d"), TEXT("_stprintf_s"));
|
|
_tprintf(L"%s\n", bufTC);
|
|
// cppcheck-suppress wrongPrintfScanfArgNum
|
|
_stprintf_s(bufTC, TEXT("%s %d"), TEXT("_stprintf_s"));
|
|
_tprintf(TEXT("%s\n"), bufTC);
|
|
// cppcheck-suppress wrongPrintfScanfArgNum
|
|
_stprintf_s(bufTC, _countof(bufTC), TEXT("test"), 0);
|
|
_tprintf(TEXT("%s\n"), bufTC);
|
|
// cppcheck-suppress wrongPrintfScanfArgNum
|
|
_stprintf_s(bufTC, TEXT("test"), TEXT("_stprintf_s"));
|
|
_tprintf(TEXT("%s\n"), bufTC);
|
|
// cppcheck-suppress invalidPrintfArgType_s
|
|
_stprintf_s(bufTC, _countof(bufTC), TEXT("%s"), 1);
|
|
_tprintf(TEXT("%s\n"), bufTC);
|
|
// cppcheck-suppress invalidPrintfArgType_s
|
|
_stprintf_s(bufTC, TEXT("%s"), 1);
|
|
_tprintf(TEXT("%s\n"), bufTC);
|
|
}
|
|
|
|
void allocDealloc_GetModuleHandleEx()
|
|
{
|
|
// For GetModuleHandleEx it depends on the first argument if FreeLibrary
|
|
// must be called or is not allowed to be called.
|
|
// If the first argument is GET_MODULE_HANDLE_EX_FLAG_UNCHANGED_REFCOUNT
|
|
// (0x00000002), a call to FreeLibrary is not allowed, otherwise it is
|
|
// necessary.
|
|
// Since this is not possible to configure at the moment cppcheck should
|
|
// accept not calling FreeLibrary and also calling it for the handle.
|
|
// TODO: Enhance cppcheck to conditionally check for alloc/dealloc issues.
|
|
|
|
// No warning because of correct FreeLibrary on 'hModule' should be issued.
|
|
HMODULE hModule1;
|
|
if (GetModuleHandleEx(0, NULL, &hModule1)) {
|
|
FreeLibrary(hModule1);
|
|
}
|
|
|
|
//This is a false negative, but it is not detected to avoid false positives.
|
|
HMODULE hModule2;
|
|
GetModuleHandleEx(0, NULL, &hModule2);
|
|
}
|